OpenBCM V1.13D (Linux)

Login: GUEST @ JH4XSY.14.JNET1.JPN.AS [Tsuchiura]

Command:
home | newest check | boards | help index | log | ps | userlogin | send sysop | slog | status forward | bcm news | users | version | remove cookie

G8MNY  > TECH     03.02.26 16:54l 107 Lines 5436 Bytes #9 (0) @ WW
BID : 51270_GB7CIP
Subj: HONDA Generator EX500 info
Path: JH4XSY<N3HYM<GB7YEW<GB7CIP
Sent: 260203/0744Z @:GB7CIP.#32.GBR.EURO #:51270 [Caterham Surrey GBR]
From: G8MNY@GB7CIP.#32.GBR.EURO
To  : TECH@WW

By G8MNY                              (Updated Aug 08)
(8 Bit ASCII graphics use code page 437 or 850, Terminal Font)

A few years ago, I was given one of these small old 4 small stroke petrol
generators with no information. It would not start (hence it was given away
less loads of screws!), but I managed to trace the cause to a completely
blocked main carburettor jet, after a major strip down to get at the bits and
several goes at gently cleaning the jet (not to enlarge the hole it) it now
runs OK.

     .トトトトトトトトトトトトト.           Breatherレトソ                 .トトトトトトトトトトトトト.
    / /~~~~~~~~~~~\ \            Handleウ ウ Filler         / /~~~~~~~~~~~\ \
.トトチトチトトトトトトトトトトトトトチトチ,      Lowレトトトトトトチトチト゚゚゚トトソTrips  ,チトチトトトトトトトトト゚゚゚トチトチトト.
ウ    ____             ゙      oilウ [] レトトトソ o  | ウrun   ゙                      ウ
ウ   ウヘクソ ウ             ン      Hzウ レソ ウ_"_ウ o  ウ ウ      ン           Speed(O)   ウ
ウ   ウ____ウ             ゙     Indウ タル タトトトル[_] マ ウoff =゙                       ウ
ウ    Plug               ウ       ウ~ ~ ~AC~ DC ~ ~ウ     ウ                       ウ
ウ                       テソPull  ウ レソ            ウ    レエ                 レトトトソ ウ
ウ        Exhaust(o)     ウウStart ウ ウウ            ウ    ウウ              Oilウ 0 ウ ウ
ウ                       テル      ウ タル            ウ    タエ o Earth         タトトトル ウ
タツトツトトトトトトトトトトトトトトトトトツトツル       タツトツトトトトトトトトトツトツル     タツトツトトトトトトトトトトトトトトトトトツトツル
  ~                   ~           ~    Feet   ~         ~                   ~

But when I laid it up for a while, it can be difficult to start (carburettor
not emptied), I found that putting a few CCs of petrol into the carburettor
intake fixed that (or using a "Cold Start" Ether spay), as dried up petrol is
less volatile.

CONTROLS
It could not be simpler, the RUN/OFF leaver operates the engine kill switch and
the double petrol & vent tap. There is a bimetallic operated choke, so nothing
to do other than pull hard on the start cord handle. If the engine has low oil
then the warning light lights.

RATING
In the 50Hz low rev quiet & economy mode, it gives 330VA, 400VA MAX, or set to
the noisier higher reving 60Hz it gives 400VA, 500VA MAX, this is also the
"Lamp" mode to reduce 25Hz content of the 4 stroke, that makes lamps flicker,
e.g. 1 power BANG in 4 half wave load cycles.

  BANG /~\255V    _._225V      /~\BANG    _._
      /   \      /   \        /   \      /   \
     ウ     ウ    ウ     ウ      ウ     ウ    ウ     ウ      ウ
      High  \  /       \.__./       \  /       \.__./
      Volts  ~~ 240V     210V        ~~
      55Hz   52Hz  49Hz  46Hz
      Fast               Slow

Generators with a much heaver flywheels tend to suffer less from this.

It also has 12V 100W charging output, which is 20V with no load, & 6-8A typical
unregulated charge current, but it is connected to the 220V output!

ECONOMY
It is also VERY economical if you don't need high power. e.g. it can run some
small fluorescent lamps, a rotator and float a 12V battery with 100W HF rig OK,
for some 6 hours from 1 fill of its small 2.5L tank. So 1 gallon per day is
feasible when /P for 12 hours/day operating.

CIRCUIT
I have reverse engineered the diagram & it is very complex for such a small
unit!
                       ON LampトトトツトトトトトトE      CHARGING
                  ______    ウ    ウ   13A S/O   +ワワ DC゙-        ___o ウPush
                 ウTuningテトトト)トトトトエ   N     L    ウ    ウ       _ウ_  o ウOFF
                 ウForks テトトトエ  gnウ   ウ   rdウ   Trip  ウ            ウ
                 ウHz Indウ   ウ /yeウ   ウbl   ウ   10A   ウ            ウ
                 タトトトトトトル gyウ    ウ   ウ    Trip  ウ  bkウ            ウbk/rd
              Oil Lampトツトトトトエ    ウ   ウ     3A   ウwh  ウ            ウ
Left Alt          yeウ  ウgy  リ    リ   リ     リ    リ    リ            ウ
Module              リ  リ    ウ    ウ   ウ     タトトトト)トトトト)トトトトソ       ウ
レトトトソ6 pole Alt     ウ  ウ    ウ    ウ   ウ     レトトトト)トトトトエ    ウrd     リ
ウ   テトラトトトソwh       ウ  ウ    ウ    ウ   ウ    _ウ_   ウ   _ウ_   ウ       ウ
ウ   ウ  28R)         ウ  ウ    ウ0.6Rウ   ウ18R \_/ 1Rウ1R \_/ 2Rウ     bkウ
ウ   テトラトトトルbk       ウ  ウ    タ((((エ   タ((((トチト(((チ(((トチト(((エ       ウ
ウA  テトトラトトトトトトトトトトトト)トト)トトトトトトトトト)トトトトトトトトトトトトトトトトトトトトトトル ウ       ウ
ウ   ウ   gn Feedback ウ  ウ         ウ Main 2 pole Alternator ウ       ウ
ウV  テトトラトトトトトトトトトトトト)トト)トトトトトトトトト)トトトトトトトトトトトトトトトトトトトトトトトトル  ___  ウ
ウ   ウ   bl           \  \      gnテトトトトトトトト(((((トトトトトトトトトトトトトエSCRテトル     /Stark
ウR  ウ      r/w   50Hz \  \      _ウ_       430R      bk/rd   ウIGNウ   10kウ Plug
ウ   テトラトト)))))トラトトo    \  \                      ______ bn  ウ   ウbk/wh )|  ウ
ウ   ウ  ye   タトラトo \__   \  \_レトトトトトトソbl         ウTimingテトラトトエ   テトトラトトト)|  ウ
ウ   ウ  ye   bk/w 60Hzウ   \___ウEngineテトトトトo      ウHead  テトトラトエ   ウ    1R)|  ウ
ウ   テトラトトトトトトトラトトトトトトル     レトエModuleテトトトo/      ウ 73R  ウ ye タトツトル      タトツトル
タトトトル     op-gn    y/r    _ウ_タトトトトトトルbl Oil     タトトトトトトル     _ウ_        _ウ_
                                     Switch
ラ or リ are connectors.

DC USE
Note, the DC is connected to the 230V! So the 230V will no longer be floating
safely, if it is used with the DC output at the same time!

See my bul on "Regulating 12V genny output" for the circuit that I use with it.

MODS
From my long bul "Petrol generators for SSB use", I did the Rev up feed forward
modification, and it did slightly improve voltage regulation under load. I also
did the ignition QRM mods, & fully suppressed this generator.


Y Don't U send an interesting bul?

73 de John G8MNY @ GB7CIP


前のメール | 次のメール